227467 2021-06-28 15:46:25 -0700 fast/css/sticky/sticky-left.html is a flaky image failure 2022-04-19 13:57:11 -0700 1 1 1 Unclassified WebKit Tools / Tests WebKit Nightly Build Unspecified Unspecified REOPENED https://bugs.webkit.org/show_bug.cgi?id=198195 https://bugs.webkit.org/show_bug.cgi?id=178963 InRadar P2 Normal --- 1 ehutchison rackler cdumez ehutchison mmaxfield simon.fraser tsavell webkit-bot-watchers-bugzilla webkit-bug-importer oldest_to_newest 1773241 0 ehutchison 2021-06-28 15:46:25 -0700 fast/css/sticky/sticky-left.html Failure on Big Sur wk2 ARM64. First appearance 6/3/21 r278415. History: https://results.webkit.org/?suite=layout-tests&test=fast%2Fcss%2Fsticky%2Fsticky-left.html Unable to access diff due to 404 error. 1773242 1 webkit-bug-importer 2021-06-28 15:46:54 -0700 <rdar://problem/79885861> 1773290 2 ehutchison 2021-06-28 18:27:55 -0700 Reproduced test results on build r278417. run-webkit-tests --root 278417 fast/css/sticky/sticky-left.html --iterations 500 --exit-after-n-failures 2 1773312 3 ryanhaddad 2021-06-28 20:35:16 -0700 13:44:16.831 21360 worker/4 Test marked as failed, ImageDiff crashed because of no data while reading stdout for the server process. 13:44:16.831 21360 worker/4 fast/css/sticky/sticky-left.html : ImageDiff produced stderr output: Error: test and reference images have different sizes. Test image is 800x700, reference image is 800x600 ImageDiff crashed 13:44:16.831 21360 worker/4 Test marked as failed, ImageDiff crashed because of a broken pipe when writing to stdin of the server process. 13:44:16.831 21360 worker/4 ref test mismatch did not produce an image diff. 13:44:16.832 21360 [10756/59269] fast/css/sticky/sticky-left.html failed unexpectedly (reference mismatch) 13:44:16.832 21360 worker/4 fast/css/sticky/sticky-left.html failed: 13:44:16.832 21360 worker/4 reference mismatch 1773474 4 ehutchison 2021-06-29 11:25:35 -0700 Bisected test failure to range of 227412 (results not reproduced) to 227417 (reproduced results). 1773484 5 tsavell 2021-06-29 12:03:59 -0700 (In reply to Eric Hutchison from comment #4) > Bisected test failure to range of 227412 (results not reproduced) to 227417 > (reproduced results). So I revisited the bisection with Eric. It seems that the initial reproduction case was actually reproducing a crash in the test. We have not been able to reproduce this crashing image diff issue that the bot is seeing. But we found that the crash is only happening on the release builds and started on r278417. a debug build of r278417 does not seem to crash. I am uncertain how a version bump in r278417 could have anything to do with this, but our archived builds seem to point to this revision as starting some kind of problem. 1773544 6 432530 ehutchison 2021-06-29 14:14:05 -0700 Created attachment 432530 Patch 1773546 7 432530 tsavell 2021-06-29 14:17:22 -0700 Comment on attachment 432530 Patch Clearing flags on attachment: 432530 Committed r279386 (239251@main): <https://commits.webkit.org/239251@main> 1773547 8 tsavell 2021-06-29 14:17:24 -0700 All reviewed patches have been landed. Closing bug. 1773564 9 tsavell 2021-06-29 14:50:45 -0700 reopen bug 1773570 10 ap 2021-06-29 14:59:12 -0700 Probably has something to do with this test, which runs just before sticky-left.html LayoutTests/fast/css/sticky/sticky-left-percentage.html: window.resizeTo(800, 700) 1773573 11 ap 2021-06-29 15:04:56 -0700 Or perhaps even more relevant is sticky-left-percentage-expected.html, which would be the one loaded right before. Note that it performs window.resizeTo(800, 700) from an inline script, before onload. I wonder if this confuses IPC. 1862594 12 rackler 2022-04-19 09:50:13 -0700 Pull request: https://github.com/WebKit/WebKit/pull/316 1862599 13 rackler 2022-04-19 09:56:55 -0700 Adding fast/css/sticky/sticky-left.html is a flaky image failure on [ Monterey Release wk2 arm64 ] as well. Description: fast/css/sticky/sticky-left.html The first failure that I see on the dashboard was 3/18/2022 at r291490 , but this is not relevant to causing this issue. This test seems to have been flaky since the start on Monterey. History: https://results.webkit.org/?suite=layout-tests&test=fast%2Fcss%2Fsticky%2Fsticky-left.html&platform=mac&version_name=Monterey&architecture=arm64&flavor=wk2&style=release&limit=50000 Image Diff: https://build.webkit.org/results/Apple-Monterey-Release-AppleSilicon-WK2-Tests/r249750@main%20(2764)/fast/css/sticky/sticky-left-diffs.html I have marked this test as flaky image failure while this issue is investigated. 1862664 14 ews-feeder 2022-04-19 11:54:58 -0700 Committed r293029 (249768@main): <https://commits.webkit.org/249768@main> Reviewed commits have been landed. Closing PR #316 and removing active labels. 1862714 15 ryanhaddad 2022-04-19 13:57:11 -0700 Reopening since the landed change was just updating test expectations. 432530 2021-06-29 14:14:05 -0700 2021-06-29 14:17:22 -0700 Patch bug-227467-20210629141402.patch text/plain 1476 ehutchison U3VidmVyc2lvbiBSZXZpc2lvbjogMjc5Mzc0CmRpZmYgLS1naXQgYS9MYXlvdXRUZXN0cy9DaGFu Z2VMb2cgYi9MYXlvdXRUZXN0cy9DaGFuZ2VMb2cKaW5kZXggNmJlYTU5YTc1YzY3MzEyYWE2N2Ji YTYzODUzYWVkYjIxNDk0NTI1Yy4uNmMzNGVmOTNiNzZhZDE4NzQwZWE0NjVlNTI2NDVhOGYzZDk0 ZGI3MyAxMDA2NDQKLS0tIGEvTGF5b3V0VGVzdHMvQ2hhbmdlTG9nCisrKyBiL0xheW91dFRlc3Rz L0NoYW5nZUxvZwpAQCAtMSwzICsxLDEzIEBACisyMDIxLTA2LTI5ICBFcmljIEh1dGNoaXNvbiAg PGVodXRjaGlzb25AYXBwbGUuY29tPgorCisgICAgICAgIFtCaWcgU3VyIFJlbGVhc2Ugd2syIGFy bTY0XSBmYXN0L2Nzcy9zdGlja3kvc3RpY2t5LWxlZnQuaHRtbCBpcyBhIGZsYWt5IGltYWdlIGZh aWx1cmUKKworICAgICAgICBodHRwczovL2J1Z3Mud2Via2l0Lm9yZy9zaG93X2J1Zy5jZ2k/aWQ9 MjI3NDY3CisKKyAgICAgICAgVW5yZXZpZXdlZCB0ZXN0IGdhcmRuZW5pbmcKKworICAgICAgICAq IHBsYXRmb3JtL21hYy13azIvVGVzdEV4cGVjdGF0aW9uczoKKwogMjAyMS0wNi0yOSAgWW9zaGlh a2kgSml0c3VrYXdhICA8eW9zaGlha2kuaml0c3VrYXdhQHNvbnkuY29tPgogCiAgICAgICAgIFAt Mzg0IEVDIHB1YmxpYyBKV0sga2V5IGluIGxheW91dCB0ZXN0cyBpcyB3cm9uZwpkaWZmIC0tZ2l0 IGEvTGF5b3V0VGVzdHMvcGxhdGZvcm0vbWFjLXdrMi9UZXN0RXhwZWN0YXRpb25zIGIvTGF5b3V0 VGVzdHMvcGxhdGZvcm0vbWFjLXdrMi9UZXN0RXhwZWN0YXRpb25zCmluZGV4IDYwZjIxMDlkZDQw ZGQyMjc5M2JiZGU1ZDkwMTlkNGYwNTcxNmQ4NGMuLjZmYzEwOTkxMjA3ODRmNzM1Yzc5ODU3YTkx YWY2NDZhZGNiZjVkNzggMTAwNjQ0Ci0tLSBhL0xheW91dFRlc3RzL3BsYXRmb3JtL21hYy13azIv VGVzdEV4cGVjdGF0aW9ucworKysgYi9MYXlvdXRUZXN0cy9wbGF0Zm9ybS9tYWMtd2syL1Rlc3RF eHBlY3RhdGlvbnMKQEAgLTEzNzUsMyArMTM3NSw1IEBAIHdlYmtpdC5vcmcvYi8yMjY3ODMgWyBh cm02NCBdIGh0dHAvdGVzdHMvY29udGVudGV4dGVuc2lvbnMvcGx1Z2luLWRvZXNudC1jcmFzaC5o CiB3ZWJraXQub3JnL2IvMjI2NzgzIFsgYXJtNjQgXSB0aWxlZC1kcmF3aW5nL3Njcm9sbGluZy9u b24tZmFzdC1yZWdpb24vd2hlZWwtZXZlbnQtcGx1Z2luLmh0bWwgWyBTa2lwIF0KIAogd2Via2l0 Lm9yZy9iLzIyNzI3MyBbIENhdGFsaW5hIERlYnVnIF0gZmFzdC9jc3MtY3VzdG9tLXBhaW50L291 dC1vZi1tZW1vcnktd2hpbGUtYWRkaW5nLXdvcmtsZXQtbW9kdWxlLmh0bWwgWyBQYXNzIFRpbWVv dXQgRHVtcEpTQ29uc29sZUxvZ0luU3RkRXJyIF0KKword2Via2l0Lm9yZy9iLzIyNzQ2NyBbIEJp Z1N1ciBhcm02NCBSZWxlYXNlIF0gZmFzdC9jc3Mvc3RpY2t5L3N0aWNreS1sZWZ0Lmh0bWwgWyBQ YXNzIEltYWdlT25seUZhaWx1cmUgXQpcIE5vIG5ld2xpbmUgYXQgZW5kIG9mIGZpbGUK